4,2,1,0,5,8,7,0,9,
0,0,5,0,0,0,2,0,1,
7,0,0,0,0,3,0,5,0,
8,0,9,0,0,0,3,2,0,
0,3,0,2,0,7,9,0,0,
0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,8,7,0,
6,0,3,8,4,0,0,0,5,
1,0,2,5,0,9,6,0,0
